Hi there,
I have been using your script to capture images from my webcam. That works
nicely :)
I get about 2,333 frames a second. And that is good enough for now.
This means than I can get pictures from the webcam and data from my serial
port.
Sadly a new problem arises. I want to capture them both at the same time.
When i run my serial script it uses 100% of my CPU. Since it reads 1000
ASCII characters a second and simply saves them to a file, I can not believe
it really requires that much of my CPU (I am running a Intel Pentium 4
M 1.8Ghz).
The image capture scripts uses about 8% of my CPU but when both scripts run
they don't seem to distribute CPU time. The serial script hogs it up and
makes my webcam driver crash (not the script though).
So I wonder is it possible to make a script use a maximum (like 90%) amount
of CPU?
I couldn't find it yet.
Right now I have both scripts working from a third script with forking. They
run nicely for 30 seconds or so and than the webcam driver crashes. So it
would e very nice if I could somehow tell one of these scripts to use only
some ammount of CPU time.
Anyway Thanks for all the help this far.
Greetings
Herman Gerritsen
On 1/12/07, Herman Gerritsen <[EMAIL PROTECTED]> wrote:
Hi there again,
I got the camera set up and working. The Logitech Quickcam drivers come
with the kernel sources these days (version 2.6.19.2 works for me) So that
is cleared up I can now record endlessly with ffmpeg :).
Anyway the FFmpeg perl module is bugging me :( so I figured to go for the
V4l solution.
I also get the "[codec/RTjpeg] Error1" thing, I cannot find the patch on
google... So if you would be so kind to mail it to me I would be gratefull.
By the way I am running perl from a linux from scratch installation (
www.linuxfromscratch.org) It is a great way to learn stuff.
And yes it's handy to have Suse or whatever installed next to it :)
Greetz
On 1/12/07, zentara <[EMAIL PROTECTED]> wrote:
>
> On Thu, 11 Jan 2007 15:10:32 +0100, [EMAIL PROTECTED] ("Herman
> Gerritsen") wrote:
>
> >I have borrowed a Logitech Quickcam messenger (046d:08f0) from my
> brother.
> >Got the driver working (in essence it creates the /dev/video0) but it
> keeps
> >crashing my players.
> >Mplayer and ffmpeg crashes, Xawtv manages to get moving images for
> about a
> >second and crashes afterwards.
> >
> >So got to figure that one out tonight, got good hopes it will work at
> the
> >end of the evening.
> >
>
> There is alot that can go wrong with video, there are PAL, NTSC
> selection, etc. Maybe you are not loading the right module
> for the camera? Or the module needs something else preloaded?
>
> It sounds like you might have a system problem. If you have a few
> extra gigs of disk space, maybe try installing a newer distro that
> sets things up automatically, like SuSE.
>
> When I was learning, I always had a second boot to SuSE, so I could
> get their various configuration files, which they usually auto-detect
> and setup correctly.
>
> OpenSuSE can be downloaded for free.
>
> zentara
>
> --
> I'm not really a human, but I play one on earth.
> http://zentara.net/japh.html
>
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>
>
>
